Science

Saturday, 14 March 2026
13 facts about tears
13 facts about tears
Multipurpose liquid
Associated with emotions, tears are a product of lacrimal glands, found in the eyes of most terrestrial vertebrates. Although their primary function i ...

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Mushrooms
There are mushrooms that hunt animals.
An example of such a mushroom is the oyster mushroom. When it lacks protein, it hunts nematodes by f ...
Silver
Silver has the lowest contact resistance among all metals.
Earth
Due to the Earth's rotation, the diameter of the equator is 43 km larger than the polar diameter.
The Earth is therefore a slightly flattened ball - this shape is called a geoid.
Enceladus
The closest Cassini flyby over the surface of Enceladus took place in October 2015.
The probe, moving at a speed of 35.000 km/h, examined the composition of the material ejected by the geysers.
Fungi
Most fungi develop as hyphae, which are cylindrical, thread-like structures 2-10 µm in diameter and up to several centimeters long.
The hyphae branch and connect, which leads to the formation of mycelium, which is an interconnected ...
Tears
There are three types of tears.
They are: Basal tears (protecting and nourishing cornea) Reflex tears (glands' reaction to irritating compounds, like smoke) Emotional tears (produced in response to various emotional states)
Snow
Snow is one of the airborne hydrometeors-atmospheric precipitation in the form of ice crystals.
These crystals are mainly shaped like six-pointed stars, combining to form snowflakes. After falling to the ground, the snowflakes form a cover-snow.
NASA
Since 2017, NASA, in collaboration with ESA, JAXA, and CSA, has been working on the Artemis program.
The program aims to reestablish a human presence on the Moon with the usage of the Space Launch Syst ...
Silver
Silver is the raw material for the production of coins.
Coins were produced from it as early as the 7th century BC. They were made in an ancient country called Lydia, from an alloy of silver and gold called electrum.
Earth
The Earth's atmosphere consists of many gases, most of which is nitrogen.
Nitrogen makes up about 78.1 percent of the atmosphere, oxygen 20.9 percent, and Argon 0.93 percent. ...